I published an update to an unlisted game and said update hasn't taken. Approximately how long does it take for the game to update the online version?
I find that changing the version number expedites the process. (It pretty much instantly updates when I change the game's version. It might just be coincidence, but it always works for me.)
I have nothing to do with that part, but I would be surprised if the version number made any difference - though it is good practice to do it anyway. I have always found that the update is essentially instant.
Are you checking with a saved game? When a player does a save, it is your entire game that is saved, and when the player continues from a save, the entire game is loaded from that save. That means if you do an update, saved games are not updated.